Improvement in slate-frames



UNITED STATES JOSEPH IY. OREMIN, OF NEW YORK, Y.

IMPROVEMEN'l IN SLATE-FRAMES.

Specification forming part of Letters Patent No. 15 1,535, dated June 2, 1874; application file March 2R, 1874. Y

To all whom it may concern:

Be it known that I, JOSEPH W, GREMIN, of the city, county, and State of New York, have iiwented a new and Improved- Slate, of which the following isa specilication:

The invention will iirst be fully described..

and then pointed out in the claims.

Figure l is a plan view of the slate, showing my improved handle or shape or space on the frame for holding it at the middle. It also shows the metal caps used for fastening-the corners and the headed rivets employed for fastening the caps on the frame. Figs. 2 and 3 are plan views, showing modified forms of the handle. Fig. 4 is a section on line a' m of Fig. 1, through one ofthe caps and the rivets. Fig. 5 is a section on line a of Fig. 1, showing the packing of rubber, or other substance, round the edges ofthe slate.

Similar letters of reference indicate corresponding parts.

The common method of holding the slate by one corner otl theframe, and pressing the opposite diagonal corner against the breast or stomach, I have found, by thirty years experience in the school-room, to be very injurious to young children. Hence, I propose to shape the frame at the middle of one or more sides, so as to make a natural, easy, and practical handle. To this end I make the curved notch or space A, l, or a hand-hole, B, Fig. 2, or anotch, A, and strip D, Fig. 3, or any other i'orm or shape which will make a convenient and easy handle or space by which the slate can be held rest-ing on the arm, (which becomes stronger from the effort required to hold the slate,) as indicated bythe dotted lines E. F represents the metal caps for fastening the corners of the frame, and G the rivets having projecting heads for receiving said caps, said rivets having projecting heads to receive the Shock and protect the slate from breaking when it falls.

As a further means of protecting the slate from fracture, I cover the edges of the slate in the grooves with rubber,'or any other suitable substance.

I do not limit myself to any particular form or shape for the slate, the hand-hole, or handle,

or the number of projecting heads at the corners of the frame.

Vhen square or oblong the number at each corner will probably be two; when round or oval, four, perhaps, would be best, distributed on the frame.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A slate-frame provided with hand-hollow A, with or without the outside piece l), substa-ntiall y as and for the purpose described.

2. ',lhe combination, with slate and metal corner-caps, of the metal rivets G, having pro jecting heads on each side, as and for the purpose specified.

JOSEPH IY. OREMIN.

Titnesses T. B. M osIIER, ALEX. F. ROBERTS. 

